py2
Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 3:51PM Reply | Return to Index | Report Post
Thank you.
Magic 8 Ball
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 3:53PM - in reply to py2 Reply | Return to Index | Report Post
No.
Math Man
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 3:54PM - in reply to py2 Reply | Return to Index | Report Post
Try non-Euclidean spaces.
M.D.
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 3:57PM - in reply to py2 Reply | Return to Index | Report Post
When Ryan Hall gets his coaching advice
combinatorist
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 4:12PM - in reply to py2 Reply | Return to Index | Report Post
Well, the Pythagorean Theorem relies on Euclidean geometry.

If you take for instance, the geometry on the surface of a sphere, then you lose some of the axioms of Euclidean geometry. So, for example, you can find triangles where the sum of the interior angles adds up to more than 180 degrees. To see this, it just takes looking at a globe. Start at the north pole, follow a line of longitude down, make a right-hand turn onto a line of latitude, then walk a little bit, and make another right-hand turn to get back to the north pole. Such a triangle will not satisfy the Pythagorean theorem. In fact, the Pythagorean theorem will not even make sense, since there is no well defined hypotenuse of such a triangle.

However, in Euclidean geometry every right triangle will satisfy the Pythagorean Theorem.
DontFeedTheTroll
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 4:31PM - in reply to py2 Reply | Return to Index | Report Post
Any time you don't meet the conditions it will not be true.

It is not true for non-right triangles.
To those who know
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 4:58PM - in reply to DontFeedTheTroll Reply | Return to Index | Report Post
Is there an x greater than 2 where you can find integers a,b,c to solve the following?

a^x + b^x = c ^x
canada coach
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:05PM - in reply to To those who know Reply | Return to Index | Report Post
It does not work on the surface of the earth which is a sphere.
earts
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:10PM - in reply to canada coach Reply | Return to Index | Report Post
The Earth is not smooth like a sphere.
combinatorist
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:10PM - in reply to canada coach Reply | Return to Index | Report Post
Hmm... I was actually looking on Wikipedia about some generalizations of Pythagora's theorem to non-Euclidean space, including it's generalization to spherical geometry.

http://en.wikipedia.org/wiki/Pythagorean_theorem#Non-Euclidean_geometry


To those who know wrote:

Is there an x greater than 2 where you can find integers a,b,c to solve the following?

a^x + b^x = c ^x


Read about Fermat's Last Theorem if you want to find out more about this question. It's actually quite an interesting story!!!

http://mathworld.wolfram.com/FermatsLastTheorem.html
Plagiarized from other posters
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:11PM - in reply to py2 Reply | Return to Index | Report Post
In non-Euclidian geometry, such a hyperbolic geometry.

And who made me a big success and brought me wealth and fame?Nikolai Ivanovich Lobachevsky is his name.
combinatorist
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:18PM - in reply to Plagiarized from other posters Reply | Return to Index | Report Post
religious persian
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/6/2012 5:40PM - in reply to py2 Reply | Return to Index | Report Post
-The second just before the Big Bang.
-The time following the Big Crunch.
-A different universe in which the speed of light is greater than 300,000 km/s.
-Wonderland
Uncle Buck
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/8/2012 2:24PM - in reply to To those who know Reply | Return to Index | Report Post

To those who know wrote:

Is there an x greater than 2 where you can find integers a,b,c to solve the following?

a^x + b^x = c ^x
.

This is Fermat's last theorem.

And, not too many years ago, it was proved that this equation does not hold for x where x is an integer > 2.

The Pythagorean theorem states that, solely for a right triangle, a^2 + b^2 = C^2, where c is the length of the side opposite the right angle and a and b the lengths of the other two sides.
Keep Going
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/8/2012 3:09PM - in reply to Uncle Buck Reply | Return to Index | Report Post
At an event horizon.
To those who know
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/8/2012 3:40PM - in reply to Uncle Buck Reply | Return to Index | Report Post
Oh man, it was already proved? Awhile back I proved it but didn't have quite enough room in the margins of the book I was reading to write it down.



Uncle Buck wrote:

[quote]To those who know wrote:

Is there an x greater than 2 where you can find integers a,b,c to solve the following?

a^x + b^x = c ^x
.

This is Fermat's last theorem.

And, not too many years ago, it was proved that this equation does not hold for x where x is an integer > 2.

The Pythagorean theorem states that, solely for a right triangle, a^2 + b^2 = C^2, where c is the length of the side opposite the right angle and a and b the lengths of the other two sides.[/quote]
i theen
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/8/2012 4:16PM - in reply to py2 Reply | Return to Index | Report Post
take Real Analysis
cookie crumble
RE: Can you describe some instances where the Pythagorean Theorem does not hold true? 4/8/2012 4:25PM - in reply to py2 Reply | Return to Index | Report Post
When the triangle doesn't have a right angle